| Mitchell 31 G-9-165809 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 10.1K | 1.34M | Aug 1997 – Aug 2026 |
| Kincaid, A. R. Trust 'C' G-9-163264 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 10.1K | 610K | May 1997 – Aug 2026 |
| Carl, William E. G-4-145944 | Nordan Trust, The only | Carrl Ranch (2ND Yegua Sand) | Duval | 1 | 10.1K | 417K | by Jan 1993 – Mar 1997 |
| Myers Family Trust G-13-252985 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 10K | 1.13M | Jul 2009 – Aug 2026 |
| Guitar Trust Estate O-10-8660 | P4 Operating, LLC only | Varel (San Andres) | Howard | 1 | 10K | 226 | by Jan 1993 – Mar 2013 |
| Fields & Bowers O-13-24903 | Bayer, Frances E. Rev Liv Trust only | Cooke County Regular | Cooke | 2 | 9.99K | 22 | by Jan 1993 – Aug 2015 |
| Kincaid, A. R. Trust "B" G-9-142597 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 9.99K | 806K | by Jan 1993 – Aug 2026 |
| Mitchell 11 G-9-62668 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 9.98K | 1.87M | by Jan 1993 – Aug 2026 |
| University #36-6 G-9-160414 | White Rock Oil & Gas, LLC only | Pakenham (Thrusted) | Terrell | 1 | 9.95K | 613K | Oct 1996 – Aug 2026 |
| Hefte, Mary Tom Trust O-4-9866 | Harper Hefte, Inc. only | Agua Dulce (6240) | Nueces | 1 | 9.94K | 49K | by Jan 1993 – May 1999 |
| Schreiner Ranch Trust No. 2 G-2-103544 | McCombs Energy LLC only | Limes (Wilcox 9900) | Live Oak | 1 | 9.94K | 489K | by Jan 1993 – Sep 1997 |
| Vollmert Trust G-14-246765 | Bracken Operating, L.L.C. only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.91K | 1.26M | Nov 2008 – Aug 2026 |
| Cole Trust Stony G-13-180733 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 9.9K | 769K | Nov 2000 – Aug 2026 |
| Brooks Trust G-2-178042 | Prime Operating Company only | Cadiz (Luling-Wilcox) | Bee | 1 | 9.8K | 1.43M | Jun 2000 – Jun 2007 |
| Richardson Trust "16" O-13-19891 | Guidance Oil DEVELOPERS,INC.(1) only | Archer County Regular | Archer | 4 | 9.79K | 201 | Mar 1993 – Aug 2026 |
| Kincaid, A. R. Trust "B" G-9-49650 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 9.77K | 611K | by Jan 1993 – Aug 2026 |
| Kincaid, A. R. Trust -D- G-9-136852 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 9.75K | 1.43M | by Jan 1993 – Jun 2025 |
| Longfellow 130 G-10-203347 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9.72K | 835K | Sep 2004 – Mar 2024 |
| Flowers Trust 'A' G-14-252891 | Bce-Mach III LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.67K | 664K | Jun 2008 – Dec 2020 |
| Moody Estate Trustee O-3-28301 | Sandpoint Texas LLC only | Sweetwater Lake (Miocene D-5) | Galveston | 1 | 9.66K | 0 | May 2026 – Aug 2026 |
| Marwill, N. L. G-6-193350 | Long Trusts, The only | Oak Hill (Cotton Valley) | Rusk | 1 | 9.65K | 1.6M | Apr 2003 – Jul 2026 |
| Henderson Trust "NN" G-9-158869 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 9.64K | 530K | Jun 1995 – Aug 2026 |
| Reed Trust O-13-34160 | Finnell Oil Services, Inc. only | -TT- (Conglomerate) | Wilbarger | 2 | 9.63K | 0 | Jan 2023 – Aug 2026 |
| Tompkins Trust Gas Unit G-6-222710 | XTO Energy Inc. only | Beckville (Cotton Valley) | Panola | 1 | 9.59K | 869K | Sep 2006 – Aug 2026 |
| Guaranty Title & Trust G-4-132463 | Pine Island Operating, L.L.C. only | Saxet, Deep (7400) | Nueces | 1 | 9.49K | 401K | by Jan 1993 – Jan 2011 |
| Oldham Trust 27 O-10-47122 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 1 | 9.48K | 15.5K | Feb 2015 – Jan 2020 |
| Kincaid, A. R. Trust G-9-183051 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 9.47K | 255K | May 2001 – Aug 2026 |
| Barth, Louis L., Trustee O-13-6446 | Steinman, Frank C. only | Wilbarger County Regular | Wilbarger | 1 | 9.46K | 99 | by Jan 1993 – Aug 2026 |
| Tuttle Trust Gas Unit G-2-230402 | PA Prospect LLC only | Tom Long (Lower Wilcox) | Lavaca | 1 | 9.45K | 447K | Aug 2007 – Feb 2009 |
| Hoefs Trust O-10-62481 | Crescent Energy Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 9.42K | 6.64K | Dec 2024 – Jul 2026 |
| Watkins Scholarship Trust G-6-231773 | Sabine Energy Inc. only | Minden (Cotton Valley Cons.) | Rusk | 1 | 9.42K | 633K | Aug 2007 – Aug 2026 |
| Waggoner, W. T. Estate -Peter- O-13-8616 | Aaa Oil Trust only | Dill, East (Dyson) | Wilbarger | 10 | 9.39K | 9 | by Jan 1993 – Jul 2010 |
| Mitchell 4 G-9-166624 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 9.39K | 1.32M | Aug 1997 – Aug 2026 |
| Rust, Doris O-3-14339 | Sage Energy Company only | Giddings (Austin Chalk-3) | Burleson | 1 | 9.39K | 61.2K | by Jan 1993 – Aug 1996 |
| USA Trust G-13-243927 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 9.38K | 1.04M | Apr 2009 – Aug 2026 |
| Kincaid, A.R. Trust 'D' G-9-147559 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 9.38K | 619K | Dec 1993 – Aug 2026 |
| CB 104 O-9-14279 | Texas Energy Trust Company only | Spraberry (Trend Area) | Reagan | 1 | 9.37K | 272K | Nov 1995 – Apr 2009 |
| Carruth, E.B. Jr. Trust et Al O-4-12225 | Cordele Development Corporation only | Boyle, E. (3500) | Starr | 1 | 9.36K | 11 | Apr 1993 – Feb 1994 |
| West Ranch G-10-179748 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9.33K | 9.19M | Oct 2000 – Jul 2026 |
| Legacy Trust A-170 G-2-221117 | Hunt Oil Company only | Giv'n Take (WX 12150 Sand) | Lavaca | 1 | 9.32K | 3.6M | Jun 2006 – Dec 2010 |
| Anderson Trust "A" G-5-184927 | Corsa Resources, LLC only | Nan-SU-Gail (CV Consolidated) | Freestone | 1 | 9.32K | 2.28M | Jul 2001 – Aug 2026 |
| Rust, L.G. G-6-123249 | Rock Bottom Oil, GP, L.L.C. only | Mound Prairie (Pettit) | Anderson | 1 | 9.28K | 684K | by Jan 1993 – Aug 2026 |
| Fite, W. P. Unit #2 O-6-11321 | Long Trusts, The only | Henderson South (Travis Peak -B- | Rusk | 1 | 9.26K | 47.9K | by Jan 1993 – Mar 2006 |
| Hooker Trust O-8-8378 | Herencia Operating LLC only | Shackelford County Regular | Shackelford | 35 | 9.21K | 10 | by Jan 1993 – Jun 1998 |
| Kincaid, A. R. Trust G-9-142462 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 9.2K | 742K | by Jan 1993 – Aug 2026 |
| Smith Family Trust Gas Unit G-6-236057 | Tab Operating, Inc. only | Naconiche Creek (Rod.-TP Cons.) | Rusk | 1 | 9.16K | 773K | Feb 2008 – Jul 2026 |
| Trustee #2 O-4-12808 | Santa Rita Holdings, LLC only | Amore (Vicksburg 5750) | Starr | 1 | 9.11K | 26.2K | Dec 1998 – May 2002 |
| Walker-Buckler Trust "B" O-8-23564 | Ruthson Energy, Inc. only | McCoy (Miss.) | Throckmorton | 1 | 9.11K | 88 | by Jan 1993 – May 2000 |
| Longfellow G-10-104146 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9.1K | 24.6M | by Jan 1993 – Apr 2024 |
| L.P. Trammel Trust O-3-24505 | Devon Energy Production Co, L.P. only | Leggett, W. (Woodbine) | Polk | 1 | 9.09K | 63.5K | Jan 2004 – Aug 2004 |